/* ==========================================================================
   蜜雪云 (mixue.homes) - 官方落地页与技术专栏【红白旗舰版】样式系统
   ========================================================================== */

:root {
  /* 核心红白品牌色彩系统 */
  --primary-red: #e11d48;
  --primary-red-hover: #be123c;
  --primary-red-dark: #9f1239;
  --primary-red-light: #fff1f2;
  --primary-red-border: #fecdd3;
  --primary-red-glow: rgba(225, 29, 72, 0.25);

  --accent-coral: #f43f5e;
  --accent-ice: #0284c7;
  --accent-ice-light: #f0f9ff;
  --accent-amber: #f59e0b;
  --accent-emerald: #10b981;

  /* 背景与白底卡片 */
  --bg-main: #fdfefe;
  --bg-subtle: #fff5f6;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.92);
  
  --border-subtle: #f1f5f9;
  --border-card: #fce7eb;
  --border-focus: #fda4af;

  /* 字体与排版颜色（高对比度，清晰易读） */
  --text-title: #0f172a;
  --text-main: #334155;
  --text-muted: #64748b;
  --text-dim: #94a3b8;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 10px 30px -10px rgba(225, 29, 72, 0.07), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 18px 36px -10px rgba(225, 29, 72, 0.15), 0 8px 16px rgba(0, 0, 0, 0.06);
  --shadow-red: 0 4px 18px rgba(225, 29, 72, 0.35);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 10% 8%, rgba(225, 29, 72, 0.05) 0%, transparent 35%),
    radial-gradient(circle at 90% 25%, rgba(244, 63, 94, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 50% 70%, rgba(254, 205, 211, 0.15) 0%, transparent 50%),
    linear-gradient(180deg, #ffffff 0%, #fff8f9 50%, #ffffff 100%);
  background-attachment: fixed;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-title);
  font-weight: 700;
  line-height: 1.3;
}

a {
  color: var(--primary-red);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-red-hover);
}

.text-gradient {
  background: linear-gradient(135deg, #e11d48 0%, #f43f5e 50%, #c026d3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-center {
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
  color: #ffffff !important;
  box-shadow: var(--shadow-red);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
  box-shadow: 0 6px 24px rgba(225, 29, 72, 0.45);
  transform: translateY(-2px);
}

.btn-recommend {
  background: linear-gradient(135deg, #be123c 0%, #9f1239 100%);
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(190, 18, 60, 0.3);
}

.btn-recommend:hover {
  background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
  box-shadow: 0 6px 20px rgba(190, 18, 60, 0.45);
  transform: translateY(-2px);
}

.btn-outline {
  background: #ffffff;
  border: 1px solid var(--border-card);
  color: var(--text-title) !important;
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  background: var(--primary-red-light);
  border-color: var(--primary-red-border);
  color: var(--primary-red) !important;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
}

/* Header & Nav (清爽白底红标) */
.header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(225, 29, 72, 0.1);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
  transition: var(--transition);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.2);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: -0.02em;
}

.brand-domain {
  font-size: 0.75rem;
  color: var(--primary-red);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary-red);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-toggle {
  display: none;
  background: #ffffff;
  border: 1px solid var(--border-card);
  color: var(--text-title);
  font-size: 1.4rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.mobile-drawer {
  display: none;
  background: #ffffff;
  border-bottom: 1px solid var(--border-card);
  padding: 16px 20px 24px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.mobile-drawer.active {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mobile-drawer a {
  color: var(--text-title);
  font-size: 1rem;
  font-weight: 600;
  padding: 8px 0;
  border-bottom: 1px solid #f8fafc;
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.highlight-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: var(--primary-red-light);
  border: 1px solid var(--primary-red-border);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  color: var(--primary-red);
  font-weight: 700;
  margin-bottom: 24px;
  animation: pulseGlow 3s infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 10px rgba(225, 29, 72, 0.1); }
  50% { box-shadow: 0 0 20px rgba(225, 29, 72, 0.25); }
}

.hero h1 {
  font-size: 3.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  max-width: 950px;
  margin: 0 auto 20px;
  line-height: 1.25;
}

.hero-p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 820px;
  margin: 0 auto 36px;
  line-height: 1.75;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 920px;
  margin: 0 auto;
}

.stat-item {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-card);
}

.stat-item h3 {
  font-size: 1.9rem;
  color: var(--primary-red);
  margin-bottom: 4px;
  font-weight: 800;
}

.stat-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Sections */
.section {
  padding: 80px 0;
  position: relative;
}

.section-title {
  font-size: 2.3rem;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 48px;
}

/* Real-time Ping Latency Monitor (白底红边科技卡片) */
.ping-monitor-box {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.ping-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.ping-item {
  background: #fffafa;
  border: 1px solid #fee2e2;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.ping-item:hover {
  border-color: var(--primary-red-border);
  background: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(225, 29, 72, 0.08);
}

.ping-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ping-flag {
  font-size: 1.6rem;
}

.ping-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-title);
}

.ping-type {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.ping-status {
  text-align: right;
}

.ping-val {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--accent-emerald);
  font-family: monospace;
}

.ping-light {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  border-radius: 50%;
  margin-right: 4px;
  box-shadow: 0 0 8px var(--accent-emerald);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  text-align: left;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #e11d48, #f43f5e);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--primary-red-border);
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 54px;
  height: 54px;
  background: var(--primary-red-light);
  border: 1px solid var(--primary-red-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--text-title);
}

.feature-card p {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Pricing Section (红白分明的高转化设计) */
.pricing-section {
  background: linear-gradient(180deg, #ffffff 0%, #fff5f6 50%, #ffffff 100%);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px 26px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-red-border);
}

.pricing-card.popular {
  border: 2px solid var(--primary-red);
  background: #ffffff;
  box-shadow: 0 12px 36px rgba(225, 29, 72, 0.18);
  transform: scale(1.03);
}

.pricing-card.popular:hover {
  transform: scale(1.05) translateY(-6px);
  box-shadow: 0 16px 44px rgba(225, 29, 72, 0.25);
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
  color: #ffffff;
  padding: 5px 18px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.35);
}

.plan-name {
  font-size: 1.45rem;
  margin-bottom: 6px;
  color: var(--text-title);
}

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  min-height: 42px;
  margin-bottom: 20px;
}

.plan-price {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--primary-red);
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan-price span {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.plan-features li {
  font-size: 0.9rem;
  color: var(--text-main);
  padding: 9px 0;
  border-bottom: 1px solid #f8fafc;
  display: flex;
  align-items: center;
  gap: 8px;
}

.plan-features li::before {
  content: '✓';
  color: var(--primary-red);
  font-weight: 800;
}

/* Comparison Table (红白格调) */
.compare-table-wrapper {
  overflow-x: auto;
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  margin-top: 20px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
  font-size: 0.94rem;
}

.compare-table th, .compare-table td {
  padding: 18px 20px;
  border-bottom: 1px solid #f1f5f9;
}

.compare-table th {
  background: #fff1f2;
  color: var(--text-title);
  font-weight: 700;
}

.compare-table th.highlight, .compare-table td.highlight {
  background: #fff8f8;
  color: var(--primary-red);
  font-weight: 700;
}

/* Articles Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.article-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  text-align: left;
  box-shadow: var(--shadow-card);
}

.article-card:hover {
  border-color: var(--primary-red-border);
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.article-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary-red);
  background: var(--primary-red-light);
  padding: 3px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  width: fit-content;
  border: 1px solid var(--primary-red-border);
}

.article-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  line-height: 1.45;
}

.article-card h3 a {
  color: var(--text-title);
}

.article-card h3 a:hover {
  color: var(--primary-red);
}

.article-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 22px;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-dim);
  border-top: 1px solid #f8fafc;
  padding-top: 16px;
}

/* User Reviews */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
}

.review-stars {
  color: #fbbf24;
  font-size: 1.15rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.7;
  margin-bottom: 24px;
  flex-grow: 1;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e11d48, #f43f5e);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #ffffff;
  font-size: 1.15rem;
  box-shadow: 0 2px 10px rgba(225, 29, 72, 0.25);
}

.user-info h4 {
  font-size: 0.98rem;
  margin-bottom: 2px;
  color: var(--text-title);
}

.user-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* FAQ Section */
.faq-list {
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.faq-item:hover {
  border-color: var(--primary-red-border);
}

.faq-question {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-title);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary-red);
  transition: transform 0.25s ease;
}

details[open] .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 22px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ==========================================================================
   Footer & PBN Pipeline 权重输血系统 (核心任务 2 - 红白沉稳典雅)
   ========================================================================== */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-card);
  padding: 64px 0 32px;
  color: var(--text-muted);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.02);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .brand-logo {
  margin-bottom: 14px;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 330px;
  line-height: 1.65;
}

.footer-col h5 {
  font-size: 0.98rem;
  color: var(--text-title);
  margin-bottom: 18px;
  font-weight: 700;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-col ul a:hover {
  color: var(--primary-red);
}

.footer-bottom-bar {
  border-top: 1px solid #f1f5f9;
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: 0.84rem;
  color: var(--text-dim);
}

/* 页脚友情链接 PBN 输血管道区 (低调、美观、小字号、深度融合) */
.footer-friendly-links {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.footer-friendly-links a {
  color: var(--text-muted);
  font-size: 0.82rem;
  text-decoration: none;
  transition: var(--transition);
}

.footer-friendly-links a:hover {
  color: var(--primary-red);
  text-decoration: underline;
}

.footer-friendly-links .separator {
  color: #cbd5e1;
  font-size: 0.75rem;
}

/* ==========================================================================
   Article Detail Page Styles (白底清爽阅读体验)
   ========================================================================== */
.article-page {
  padding: 50px 0 80px;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-dim);
  margin-bottom: 28px;
}

.breadcrumbs a {
  color: var(--text-muted);
}

.breadcrumbs a:hover {
  color: var(--primary-red);
}

.article-body {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 46px;
  box-shadow: var(--shadow-card);
}

.article-header {
  margin-bottom: 32px;
  border-bottom: 1px solid #f1f5f9;
  padding-bottom: 24px;
}

.article-header h1 {
  font-size: 2.3rem;
  margin-bottom: 16px;
  line-height: 1.35;
  color: var(--text-title);
}

.article-content h2 {
  font-size: 1.55rem;
  margin: 38px 0 16px;
  color: var(--text-title);
  border-left: 4px solid var(--primary-red);
  padding-left: 14px;
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px;
  color: #1e293b;
}

.article-content p {
  font-size: 1.05rem;
  color: #334155;
  line-height: 1.85;
  margin-bottom: 22px;
}

.article-content ul, .article-content ol {
  margin: 0 0 24px 24px;
  color: #334155;
  line-height: 1.85;
  font-size: 1.02rem;
}

.article-content strong {
  color: #0f172a;
  font-weight: 700;
}

.article-cta-box {
  background: linear-gradient(135deg, #fff1f2 0%, #ffffff 50%, #fff5f6 100%);
  border: 1px solid var(--primary-red-border);
  border-radius: var(--radius-md);
  padding: 30px;
  margin: 38px 0;
  text-align: center;
  box-shadow: 0 4px 16px rgba(225, 29, 72, 0.08);
}

.article-cta-box h3 {
  font-size: 1.35rem;
  margin-bottom: 8px;
  color: var(--primary-red);
}

.article-cta-box p {
  font-size: 0.96rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.related-articles {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid #f1f5f9;
}

.related-articles h3 {
  font-size: 1.22rem;
  margin-bottom: 16px;
  color: var(--text-title);
}

.related-articles ul {
  list-style: none;
  margin-left: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.related-articles li a {
  color: var(--primary-red);
  font-weight: 600;
  font-size: 0.96rem;
}

.related-articles li a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Mobile Responsive Adjustments
   ========================================================================== */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.popular {
    transform: none;
  }
  .pricing-card.popular:hover {
    transform: translateY(-6px);
  }
  .ping-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu, .nav-actions {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero h1 {
    font-size: 2.1rem;
  }
  .hero-p {
    font-size: 1rem;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .ping-grid {
    grid-template-columns: 1fr;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom-bar {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }
  .article-body {
    padding: 26px 20px;
  }
  .article-header h1 {
    font-size: 1.65rem;
  }
}